Remove resource type-specific fetching logic from ResourceFetcher

Source/core/inspector/InspectorResourceContentLoader.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/inspector/InspectorResourceContentLoader.h"
 
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/dom/Document.h"
@@ skipping 91 matching lines @@
                 FrameLoader::resourceRequestFromHistoryItem(item, ReturnCacheDataDontLoad);
         } else {
             resourceRequest = document->url();
             resourceRequest.setCachePolicy(ReturnCacheDataDontLoad);
         }
         resourceRequest.setRequestContext(WebURLRequest::RequestContextInternal);
 
         if (!resourceRequest.url().string().isEmpty()) {
             urlsToFetch.add(resourceRequest.url().string());
             FetchRequest request(resourceRequest, FetchInitiatorTypeNames::internal);
-            ResourcePtr<Resource> resource = document->fetcher()->fetchRawResource(request);
+            ResourcePtr<Resource> resource = RawResource::fetch(request, document->fetcher());
             if (resource) {
                 // Prevent garbage collection by holding a reference to this resource.
                 m_resources.append(resource.get());
                 ResourceClient* resourceClient = new ResourceClient(this);
                 m_pendingResourceClients.add(resourceClient);
                 resourceClient->waitForResource(resource.get());
             }
         }
 
         WillBeHeapVector<RawPtrWillBeMember<CSSStyleSheet> > styleSheets;
         InspectorCSSAgent::collectAllDocumentStyleSheets(document, styleSheets);
         for (CSSStyleSheet* styleSheet : styleSheets) {
             if (styleSheet->isInline() || !styleSheet->contents()->loadCompleted())
                 continue;
             String url = styleSheet->baseURL().string();
             if (url.isEmpty() || urlsToFetch.contains(url))
                 continue;
             urlsToFetch.add(url);
             FetchRequest request(ResourceRequest(url), FetchInitiatorTypeNames::internal);
             request.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextInternal);
-            ResourcePtr<Resource> resource = document->fetcher()->fetchCSSStyleSheet(request);
+            ResourcePtr<Resource> resource = CSSStyleSheetResource::fetch(request, document->fetcher());
             if (!resource)
                 continue;
             // Prevent garbage collection by holding a reference to this resource.
             m_resources.append(resource.get());
             ResourceClient* resourceClient = new ResourceClient(this);
             m_pendingResourceClients.add(resourceClient);
             resourceClient->waitForResource(resource.get());
         }
     }
 
@@ skipping 51 matching lines @@
         callback->handleEvent();
 }
 
 void InspectorResourceContentLoader::resourceFinished(ResourceClient* client)
 {
     m_pendingResourceClients.remove(client);
     checkDone();
 }
 
 } // namespace blink